Overview

Distribution

Range Description

This species occurs from northwestern Chihuahua along the Sierra Madre Occidental through Durango to western Zacatecas and extreme northeastern Nayarit, Mexico. It is found from 1,860 to 2,545 m asl.
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Physical Description

Type Information

Paratype for Thamnophis errans
Catalog Number: USNM 46339
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1899
Locality: Colonia Garcia, near, Chihuahua, Mexico
  • Paratype: Smith, H. M. 1942. Zoologica. 27 (3+4): 112.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Thamnophis errans
Catalog Number: USNM 46338
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1899
Locality: Colonia Garcia, near, Chihuahua, Mexico
  • Paratype: Smith, H. M. 1942. Zoologica. 27 (3+4): 112.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Paratype for Thamnophis errans
Catalog Number: USNM 46337
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Preparation: Ethanol
Year Collected: 1899
Locality: Colonia Garcia, near, Chihuahua, Mexico
  • Paratype: Smith, H. M. 1942. Zoologica. 27 (3+4): 112.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Holotype for Thamnophis errans
Catalog Number: USNM 46336
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles
Sex/Stage: Female;
Preparation: Ethanol
Year Collected: 1899
Locality: Colonia Garcia, near, Chihuahua, Mexico
  • Holotype: Smith, H. M. 1942. Zoologica. 27 (3+4): 112.
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© Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Amphibians & Reptiles

Source: National Museum of Natural History Collections

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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species is found under rocks and logs in pine and pine-oak forest. It is not known to what extent it might be able to adapt to degraded habitats.

Systems
  • Terrestrial
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Thamnophis errans

The following is a representative barcode sequence, the centroid of all available sequences for this species.


There is 1 barcode sequence available from BOLD and GenBank.   Below is the sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.  See the BOLD taxonomy browser for more complete information about this specimen.  Other sequences that do not yet meet barcode criteria may also be available.

CTTCTCCTGCTTCTATCCTCATCTTACGTAGAAGCCGGTGCCGGCACCGGCTGAACAGTGTACCCACCACTTTCAGGGAACCTAGTACACTCAGGACCCTCAGTGGACCTG---GCAATCTTCTCCTTACATCTAGCAGGAGCCTCGTCCATCCTGGGAGCAATCAACTTTATCACAACATGTATCAACATAAAACCAAAATCCATACCAATATTCAATATCCCTTTATTTGTTTGGTCAGTCTTAATCACCGCCATTATATTACTGTTAGCCCTACCAGTACTAGCGGCA---GCGATTACTATACTACTAACTGACCGAAACATCAACACCTCATTTTTTGATCCGTGCGGGGGCGGAGACCCGGTTTTATTCCAACACCTGTTCTGATTCTTTGGCCACCCAGAAGTATATATCCTCATCCTACCCGGATTCGGCATTATTTCAAGCATTATCACATTCTACACTGGAAAAAAA---AACACATTTGGATACACAAGCATAATTTGAGCAATGATATCCATCGCAATCCTAGGTTTTGTAGTATGAGCACACCACATATTTACCGTCGGCCTAGACATTGAC------------------------------------------------------------------------------------------AGC
-- end --

Download FASTA File
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Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Thamnophis errans

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 1
Species With Barcodes: 1
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Source: Barcode of Life Data Systems (BOLD)

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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2007

Assessor/s
Flores-Villela, O.

Reviewer/s
Cox, N., Chanson, J.S. & Stuart, S.N. (Global Reptile Assessment Coordinating Team)

Contributor/s

Justification
Listed as Least Concern in view of its wide distribution, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.
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Population

Population
There is little information on its abundance.

Population Trend
Unknown
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Threats

Major Threats
No threats have been identified. It is potentially at risk from the loss of its forest habitat, at least locally, if it is unable to adapt to secondary habitats.
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Management

Conservation Actions

Conservation Actions
This is a poorly known species, and more fieldwork is needed to provide data on its natural history, on the status of its populations, and on its conservation requrements. It presumably occurs in a number of protected areas.
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